kernel-libipsec: Add plugin that implements kernel_ipsec_t using libipsec

This commit is contained in:
Tobias Brunner 2013-06-11 18:43:01 +02:00
parent 3cd7ba4960
commit 279e0d42bd
7 changed files with 400 additions and 0 deletions

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@ -192,6 +192,7 @@ ARG_DISBL_SET([kernel-netlink], [disable the netlink kernel interface.])
ARG_ENABL_SET([kernel-pfkey], [enable the PF_KEY kernel interface.])
ARG_ENABL_SET([kernel-pfroute], [enable the PF_ROUTE kernel interface.])
ARG_ENABL_SET([kernel-klips], [enable the KLIPS kernel interface.])
ARG_ENABL_SET([kernel-libipsec],[enable the libipsec kernel interface.])
ARG_ENABL_SET([libipsec], [enable user space IPsec implementation.])
ARG_DISBL_SET([socket-default], [disable default socket implementation for charon.])
ARG_ENABL_SET([socket-dynamic], [enable dynamic socket implementation for charon])
@ -306,6 +307,10 @@ if test x$xauth_generic_given = xfalse -a x$ikev1 = xfalse; then
xauth_generic=false;
fi
if test x$kernel_libipsec = xtrue; then
libipsec=true;
fi
if test x$eap_aka_3gpp2 = xtrue; then
gmp=true;
fi
@ -1015,6 +1020,7 @@ ADD_PLUGIN([gcm], [s charon scripts nm cmd])
ADD_PLUGIN([attr], [h charon])
ADD_PLUGIN([attr-sql], [h charon])
ADD_PLUGIN([load-tester], [c charon])
ADD_PLUGIN([kernel-libipsec], [c charon cmd])
ADD_PLUGIN([kernel-pfkey], [h charon starter nm cmd])
ADD_PLUGIN([kernel-pfroute], [h charon starter nm cmd])
ADD_PLUGIN([kernel-klips], [h charon starter])
@ -1163,6 +1169,7 @@ AM_CONDITIONAL(USE_DHCP, test x$dhcp = xtrue)
AM_CONDITIONAL(USE_UNIT_TESTS, test x$unit_tester = xtrue)
AM_CONDITIONAL(USE_LOAD_TESTER, test x$load_tester = xtrue)
AM_CONDITIONAL(USE_HA, test x$ha = xtrue)
AM_CONDITIONAL(USE_KERNEL_LIBIPSEC, test x$kernel_libipsec = xtrue)
AM_CONDITIONAL(USE_WHITELIST, test x$whitelist = xtrue)
AM_CONDITIONAL(USE_LOOKIP, test x$lookip = xtrue)
AM_CONDITIONAL(USE_ERROR_NOTIFY, test x$error_notify = xtrue)
@ -1418,6 +1425,7 @@ AC_CONFIG_FILES([
src/libcharon/plugins/unity/Makefile
src/libcharon/plugins/uci/Makefile
src/libcharon/plugins/ha/Makefile
src/libcharon/plugins/kernel_libipsec/Makefile
src/libcharon/plugins/whitelist/Makefile
src/libcharon/plugins/lookip/Makefile
src/libcharon/plugins/error_notify/Makefile

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@ -485,6 +485,13 @@ if MONOLITHIC
endif
endif
if USE_KERNEL_LIBIPSEC
SUBDIRS += plugins/kernel_libipsec
if MONOLITHIC
libcharon_la_LIBADD += plugins/kernel_libipsec/libstrongswan-kernel-libipsec.la
endif
endif
if USE_WHITELIST
SUBDIRS += plugins/whitelist
if MONOLITHIC

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@ -0,0 +1,21 @@
INCLUDES = -I$(top_srcdir)/src/libstrongswan \
-I$(top_srcdir)/src/libhydra \
-I$(top_srcdir)/src/libcharon \
-I$(top_srcdir)/src/libipsec
AM_CFLAGS = -rdynamic
if MONOLITHIC
noinst_LTLIBRARIES = libstrongswan-kernel-libipsec.la
else
plugin_LTLIBRARIES = libstrongswan-kernel-libipsec.la
endif
libstrongswan_kernel_libipsec_la_SOURCES = \
kernel_libipsec_plugin.h kernel_libipsec_plugin.c \
kernel_libipsec_ipsec.h kernel_libipsec_ipsec.c
libstrongswan_kernel_libipsec_la_LIBADD = $(top_builddir)/src/libipsec/libipsec.la
libstrongswan_kernel_libipsec_la_LDFLAGS = -module -avoid-version

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@ -0,0 +1,189 @@
/*
* Copyright (C) 2012-2013 Tobias Brunner
* Hochschule fuer Technik Rapperswil
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License as published by the
* Free Software Foundation; either version 2 of the License, or (at your
* option) any later version. See <http://www.fsf.org/copyleft/gpl.txt>. *
* This program is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
* or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
* for more details.
*/
#include "kernel_libipsec_ipsec.h"
#include <library.h>
#include <ipsec.h>
#include <hydra.h>
#include <utils/debug.h>
typedef struct private_kernel_libipsec_ipsec_t private_kernel_libipsec_ipsec_t;
struct private_kernel_libipsec_ipsec_t {
/**
* Public libipsec_ipsec interface
*/
kernel_libipsec_ipsec_t public;
/**
* Listener for lifetime expire events
*/
ipsec_event_listener_t ipsec_listener;
};
/**
* Expiration callback
*/
static void expire(u_int32_t reqid, u_int8_t protocol, u_int32_t spi, bool hard)
{
hydra->kernel_interface->expire(hydra->kernel_interface, reqid, protocol,
spi, hard);
}
METHOD(kernel_ipsec_t, get_spi, status_t,
private_kernel_libipsec_ipsec_t *this, host_t *src, host_t *dst,
u_int8_t protocol, u_int32_t reqid, u_int32_t *spi)
{
return ipsec->sas->get_spi(ipsec->sas, src, dst, protocol, reqid, spi);
}
METHOD(kernel_ipsec_t, get_cpi, status_t,
private_kernel_libipsec_ipsec_t *this, host_t *src, host_t *dst,
u_int32_t reqid, u_int16_t *cpi)
{
return NOT_SUPPORTED;
}
METHOD(kernel_ipsec_t, add_sa, status_t,
private_kernel_libipsec_ipsec_t *this, host_t *src, host_t *dst,
u_int32_t spi, u_int8_t protocol, u_int32_t reqid, mark_t mark,
u_int32_t tfc, lifetime_cfg_t *lifetime, u_int16_t enc_alg, chunk_t enc_key,
u_int16_t int_alg, chunk_t int_key, ipsec_mode_t mode, u_int16_t ipcomp,
u_int16_t cpi, bool initiator, bool encap, bool esn, bool inbound,
traffic_selector_t *src_ts, traffic_selector_t *dst_ts)
{
return ipsec->sas->add_sa(ipsec->sas, src, dst, spi, protocol, reqid, mark,
tfc, lifetime, enc_alg, enc_key, int_alg, int_key,
mode, ipcomp, cpi, initiator, encap, esn, inbound,
src_ts, dst_ts);
}
METHOD(kernel_ipsec_t, update_sa, status_t,
private_kernel_libipsec_ipsec_t *this, u_int32_t spi, u_int8_t protocol,
u_int16_t cpi, host_t *src, host_t *dst, host_t *new_src, host_t *new_dst,
bool encap, bool new_encap, mark_t mark)
{
return NOT_SUPPORTED;
}
METHOD(kernel_ipsec_t, query_sa, status_t,
private_kernel_libipsec_ipsec_t *this, host_t *src, host_t *dst,
u_int32_t spi, u_int8_t protocol, mark_t mark, u_int64_t *bytes,
u_int64_t *packets, u_int32_t *time)
{
return NOT_SUPPORTED;
}
METHOD(kernel_ipsec_t, del_sa, status_t,
private_kernel_libipsec_ipsec_t *this, host_t *src, host_t *dst,
u_int32_t spi, u_int8_t protocol, u_int16_t cpi, mark_t mark)
{
return ipsec->sas->del_sa(ipsec->sas, src, dst, spi, protocol, cpi, mark);
}
METHOD(kernel_ipsec_t, flush_sas, status_t,
private_kernel_libipsec_ipsec_t *this)
{
return ipsec->sas->flush_sas(ipsec->sas);
}
METHOD(kernel_ipsec_t, add_policy, status_t,
private_kernel_libipsec_ipsec_t *this, host_t *src, host_t *dst,
traffic_selector_t *src_ts, traffic_selector_t *dst_ts,
policy_dir_t direction, policy_type_t type, ipsec_sa_cfg_t *sa, mark_t mark,
policy_priority_t priority)
{
return ipsec->policies->add_policy(ipsec->policies, src, dst, src_ts,
dst_ts, direction, type, sa, mark, priority);
}
METHOD(kernel_ipsec_t, query_policy, status_t,
private_kernel_libipsec_ipsec_t *this, traffic_selector_t *src_ts,
traffic_selector_t *dst_ts, policy_dir_t direction, mark_t mark,
u_int32_t *use_time)
{
return NOT_SUPPORTED;
}
METHOD(kernel_ipsec_t, del_policy, status_t,
private_kernel_libipsec_ipsec_t *this, traffic_selector_t *src_ts,
traffic_selector_t *dst_ts, policy_dir_t direction, u_int32_t reqid,
mark_t mark, policy_priority_t priority)
{
return ipsec->policies->del_policy(ipsec->policies, src_ts, dst_ts,
direction, reqid, mark, priority);
}
METHOD(kernel_ipsec_t, flush_policies, status_t,
private_kernel_libipsec_ipsec_t *this)
{
return ipsec->policies->flush_policies(ipsec->policies);
}
METHOD(kernel_ipsec_t, bypass_socket, bool,
private_kernel_libipsec_ipsec_t *this, int fd, int family)
{
return NOT_SUPPORTED;
}
METHOD(kernel_ipsec_t, enable_udp_decap, bool,
private_kernel_libipsec_ipsec_t *this, int fd, int family, u_int16_t port)
{
return NOT_SUPPORTED;
}
METHOD(kernel_ipsec_t, destroy, void,
private_kernel_libipsec_ipsec_t *this)
{
ipsec->events->unregister_listener(ipsec->events, &this->ipsec_listener);
free(this);
}
/*
* Described in header.
*/
kernel_libipsec_ipsec_t *kernel_libipsec_ipsec_create()
{
private_kernel_libipsec_ipsec_t *this;
INIT(this,
.public = {
.interface = {
.get_spi = _get_spi,
.get_cpi = _get_cpi,
.add_sa = _add_sa,
.update_sa = _update_sa,
.query_sa = _query_sa,
.del_sa = _del_sa,
.flush_sas = _flush_sas,
.add_policy = _add_policy,
.query_policy = _query_policy,
.del_policy = _del_policy,
.flush_policies = _flush_policies,
.bypass_socket = _bypass_socket,
.enable_udp_decap = _enable_udp_decap,
.destroy = _destroy,
},
},
.ipsec_listener = {
.expire = expire,
},
);
ipsec->events->register_listener(ipsec->events, &this->ipsec_listener);
return &this->public;
};

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@ -0,0 +1,47 @@
/*
* Copyright (C) 2012-2013 Tobias Brunner
* Hochschule fuer Technik Rapperswil
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License as published by the
* Free Software Foundation; either version 2 of the License, or (at your
* option) any later version. See <http://www.fsf.org/copyleft/gpl.txt>.
*
* This program is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
* or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
* for more details.
*/
/**
* @defgroup kernel_libipsec_ipsec kernel_libipsec_ipsec
* @{ @ingroup kernel_libipsec
*/
#ifndef KERNEL_LIBIPSEC_IPSEC_H_
#define KERNEL_LIBIPSEC_IPSEC_H_
#include <library.h>
#include <kernel/kernel_ipsec.h>
typedef struct kernel_libipsec_ipsec_t kernel_libipsec_ipsec_t;
/**
* Implementation of the ipsec interface using libipsec
*/
struct kernel_libipsec_ipsec_t {
/**
* Implements kernel_ipsec_t interface
*/
kernel_ipsec_t interface;
};
/**
* Create a libipsec ipsec interface instance.
*
* @return kernel_libipsec_ipsec_t instance
*/
kernel_libipsec_ipsec_t *kernel_libipsec_ipsec_create();
#endif /** KERNEL_LIBIPSEC_IPSEC_H_ @}*/

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@ -0,0 +1,84 @@
/*
* Copyright (C) 2012-2013 Tobias Brunner
* Hochschule fuer Technik Rapperswil
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License as published by the
* Free Software Foundation; either version 2 of the License, or (at your
* option) any later version. See <http://www.fsf.org/copyleft/gpl.txt>.
*
* This program is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
* or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
* for more details.
*/
#include "kernel_libipsec_plugin.h"
#include "kernel_libipsec_ipsec.h"
#include <ipsec.h>
#include <utils/debug.h>
typedef struct private_kernel_libipsec_plugin_t private_kernel_libipsec_plugin_t;
/**
* private data of "kernel" libipsec plugin
*/
struct private_kernel_libipsec_plugin_t {
/**
* implements plugin interface
*/
kernel_libipsec_plugin_t public;
};
METHOD(plugin_t, get_name, char*,
private_kernel_libipsec_plugin_t *this)
{
return "kernel-libipsec";
}
METHOD(plugin_t, get_features, int,
private_kernel_libipsec_plugin_t *this, plugin_feature_t *features[])
{
static plugin_feature_t f[] = {
PLUGIN_CALLBACK(kernel_ipsec_register, kernel_libipsec_ipsec_create),
PLUGIN_PROVIDE(CUSTOM, "kernel-ipsec"),
};
*features = f;
return countof(f);
}
METHOD(plugin_t, destroy, void,
private_kernel_libipsec_plugin_t *this)
{
libipsec_deinit();
free(this);
}
/*
* see header file
*/
plugin_t *kernel_libipsec_plugin_create()
{
private_kernel_libipsec_plugin_t *this;
INIT(this,
.public = {
.plugin = {
.get_name = _get_name,
.get_features = _get_features,
.destroy = _destroy,
},
},
);
if (!libipsec_init())
{
DBG1(DBG_LIB, "initialization of libipsec failed");
destroy(this);
return NULL;
}
return &this->public.plugin;
}

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@ -0,0 +1,44 @@
/*
* Copyright (C) 2012-2013 Tobias Brunner
* Hochschule fuer Technik Rapperswil
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License as published by the
* Free Software Foundation; either version 2 of the License, or (at your
* option) any later version. See <http://www.fsf.org/copyleft/gpl.txt>.
*
* This program is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
* or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
* for more details.
*/
/**
* @defgroup kernel_libipsec kernel_libipsec
* @ingroup cplugins
*
* @defgroup kernel_libipsec_plugin kernel_libipsec_plugin
* @{ @ingroup kernel_libipsec
*/
#ifndef KERNEL_LIBIPSEC_PLUGIN_H_
#define KERNEL_LIBIPSEC_PLUGIN_H_
#include <library.h>
#include <plugins/plugin.h>
typedef struct kernel_libipsec_plugin_t kernel_libipsec_plugin_t;
/**
* libipsec "kernel" interface plugin
*/
struct kernel_libipsec_plugin_t {
/**
* implements plugin interface
*/
plugin_t plugin;
};
#endif /** KERNEL_LIBIPSEC_PLUGIN_H_ @}*/